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I was recently asked if the iSeries had a data base, or
whether our
application used flat files.
I said it had a relational DB, but then I started
thinking about the
application's use of the DB.
It's a 25 yo application, and yes it has keyed files
(physical as well
as logical of course)and these files are related through
foreign keys.
Some logicals of course have select/omit criteria.
But there's no constraints, triggers or procedures being
used. There is
no use of DDL. It's all compiled DDS.
That got me wondering if there's a more subtle definition
of a
Relational DB.
In other words, would I be correct in repoprting back to
this person
(the company architect) that yes we do have a Relational
DB but it has
not been implemented in a Relational manner? Or should I
just keep my
mouth shut?
Thanks.
Mike Pantzopoulos
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